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Is Selenium Ion A Cation Or Anion?

List of Ions in the CCCBDB

Species Name charge
S+ Sulfur atom cation 1
Se- Selenium atom anion -1
Se+ Selenium atom cation 1
OH- hydroxide anion -1

What element is the anion in sodium selenide?

Sodium selenide is an inorganic compound of sodium and selenium with the chemical formula Na2Se.

What charge does a selenide ion have?


3.1Computed Properties

Property Name Property Value Reference
Formal Charge -2 Computed by PubChem
Complexity 0 Computed by Cactvs (PubChem release 2021.05.07)
Isotope Atom Count 0 Computed by PubChem
Defined Atom Stereocenter Count 0 Computed by PubChem

Is bromine anion or cation?

And all of them form an anion with a single negative charge. The VIA elements gain two electrons to form anions with a 2- charge. The VA elements gain three electrons to form anions with a 3- charge….Positive and Negative Ions: Cations and Anions.

Family Element Ion Name
VIIA Fluorine Fluoride anion
Chlorine Chloride anion
Bromine Bromide anion
Iodine Iodide anion

How can you tell the difference between an anion and a cation?

The key difference between anion and cation is that anions are the negatively charged ions formed from neutral atoms whereas cations are positively charged ions formed from neutral atoms. Commonly, anions and cations are called ions.

What is the cation, the anion, and the formula?

Cation Formula Cation Name Anion Formula Anion Name H+ Hydrogen BO 3-3 Borate Li+ Lithium CO 3-2 Carbonate Na+ Sodium HCO 3-Bicarbonate K+ Potassium NO 2-Nitrite Be+2 Beryllium NO 3-Nitrate Mg+2 Magnesium PO 2-3 Hypophosphite Ca+2 Calcium PO 3-3 Phosphite Sr+2 Strontium PO 4-3 Phosphate Ba+2 Barium HPO 4-2 Biphosphate B+3 Boron H 2PO4-Hydrogen

What are ions formed by selenium?

Hydrogen selenide is the acid made from selenide ion. Selenium also reacts with reactive metals to make selenides, such as sodium selenide or aluminium selenide. The +1 state is found in some selenium compounds, such as selenium(I) chloride. They are the most unreactive selenium compounds.

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